nornir-web

nornir-web is a Python 3 web service (Django) that serves arbitrary registered image regions from a Nornir volume to HTTP clients.

Note

The service is functional but was never optimized for production throughput. It is included in the repository for reference and future development.

Architecture

One service per volume. The service imports or updates the volume model at startup, building a spatial index (SQL database) that maps volume-space regions to registered tiles.
Arbitrary region requests. Clients send HTTP requests for any (minZ, minY, minX, maxZ, maxY, maxX) bounding box in volume space. The service assembles the response image from registered, non-overlapping tiles.
Tile cache. Registered tiles are stored on disk. Stale or missing tiles are computed on demand (GPU step) and cached. The intention was to pre-build the full-volume tile cache during idle periods.

Known limitations

Volume import/update at startup was slow, primarily due to XML-based metadata (SQL + spatial DB would be faster).
Python’s GIL was a bottleneck when handling large numbers of concurrent tile requests.
Long-running registration jobs need versioning or locking to avoid serving stale tiles.

Django components

The Django project contains standard boilerplate: settings.py, urls.py, wsgi.py, and manage.py. There is no meaningful public Python API beyond the Django admin and views.